I've updated both builds of the game to version 0.503a - this adds an automatic camera queue system that you can use to do a "headless" stream. If you go into the Twitch settings menu and click the "auto mode" button, it'll enter a mode where the camera follows whichever players are currently active. When multiple players are active, a countdown plays and the camera splits its time between active players.

This is a first pass of this system - my ultimate goal for this is that streamers will be able to do their hosted streams where they build the world with the chat, but then also leave the game on while they're away, and the Twitch chat players will be able to continue playing and building! I'm thinking a lot about new commands to give the Twitch chat player so they can build creatively and have a cool MMO-style experience on the Twitch channel. :)

I'm doing early experimental streams of this on: https://www.twitch.tv/modlands - if you like, drop by and create a character! :)